Numerade

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when do developing individuals begin to hear sounds and how does its affect language development

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Una muestra de 1.00 x 102 mL de HCI 0.500 M se mezcla con 1.00 x 102 mL de NaOH 0.500 M en un calorímetro a presión constante de capacidad calorífica despreciable. La temperatura inicial de las disoluciones de HCI y NaOH es la misma, 22.50°C, y la temperatura final de la mezcla es de 25.86°C. Calcule el cambio de calor de la reacción de neutralización sobre una base molar [J/mol]. $$NaOH_{(ac)} + HCl_{(ac)} \rightarrow H_2O_{(l)} + NaCl_{(s)}$$ Suponga que las densidades y los calores específicos de las disoluciones son los mismos que los del agua: $$c = 4.184 \frac{J}{g \cdot C}$$ $$\rho_{agua} = 1.00 \frac{g}{ml}$$

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What is the predicted product of the reaction shown? 1. $O_3$ 2. DMS 3. $Na_2Cr_2O_7/H_2SO_4/H_2O$

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For the following reaction, 127 grams of iron(II) chloride are allowed to react with 680 grams of silver nitrate . FeCl2 (aq) + 2 AgNO3 (aq) Fe(NO3)2 (aq) + 2 AgCl (s) What is the FORMULA for the limiting reagent? blank

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8) (20 marks) A mixture of four components is sent as feed to a distillation column. The amount of each component in the feed is shown in the table below in mol/h. Assume 52 mol/h of LK in D, and 28 mol/h of HK in B. Fill the table below and calculate the %recovery of LK and HK. Assume that LNK and HNK are only recovered at the top and bottom of the column, respectively. Component i $z_{f_i}$ $f_i = Fz_{f_i}$ $d_i$ $x_{D,i} = d_i/D$ $b_i$ $x_{B,i} = b_i/B$ LNK 40 LK 75 HK 35 HNK 50

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Supply: 10P, when P < 10 Supply: 0, when P ≥ 10

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Refer to the accompanying figure to answer the questions that follow. Price P3 S P2 P1 37,500 50,000 68,000 80,000 100,000 Quantity The market is currently at market equilibrium. If a binding price ceiling of P? is imposed, what would happen in this market? There would be a surplus of 30,000 units. There would be a shortage of 12,000 units. There would be a surplus of 12,000 units. There would be a shortage of 30,000 units.

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Positive symptoms of schizophrenia are to ____ as negative symptoms of schizophrenia are to ____. ? strengths; weaknesses ? manageable; unmanageable ? true; false ? an excess of normal function; an absence of normal function

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Assume that a bond will make payments every six months as shown on the following timeline: Period Cash flow 0 1 2 $45.00 $45.00 a. What is the maturity of the bond (in years)? b. What is the coupon rate (in percent)? c. What is the face value? 15 16 $45.00 $1,045.00

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A young woman came to the clinic with lower abdominal pain during urination which was caused by a calculi in the bladder. However CT scan showed a mass that looks like a kidney above the bladder. 1- What is the most important question that should come to your mind when you first see this? 2- what is the most probable diagnosis? Ectopic pelvic kidney

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patricia j.